• Singapore' s Sembcorp Marine chose Schottel&rsquo s azimuthal hybrid drive system SYDRIVE-E for the world&rsquo s first liquefied natural gas (LNG) hybrid tug. Image courtesy Schottel
• Schottel&rsquo s azimuthal hybrid drive system SYDRIVE-E. Image courtesy Schottel

Singapore-based Sembcorp Marine chose Schottel&rsquo s azimuthal hybrid drive system SYDRIVE-E to power the world&rsquo s first liquefied natural gas (LNG) hybrid tug. 

With this first in a series of 12 vessels, Sembcorp Marine will build the world&rsquo s first hybrid LNG-fueled tug fleet that will replace its existing diesel-powered tugs. The vessel is designed by LMG Marin, a wholly owned Sembcorp Marine subsidiary, and a leading naval architecture design house in Bergen, Norway, which provides energy efficient solutions.

The tug&rsquo s future operation profile in the harbors of Singapore will demand highly variable power ranges. Depending on the desired operating mode and the required propulsion power, the hybrid drive system activates the appropriate power source or both together. The LNG-fueled main engines and the electrical motors are both coupled to the SYDRIVE system and are designed to operate efficiently within their optimal load ranges,helping to reduce fuel consumption and emissions.

In terms of thruster integration, each upper gearbox offers two power input positions with an offset angle of +/- 90° for two power sources. An option with a +/- 135° offset angle is also available allowing even more design flexibility.

Sembcorp Marine&rsquo s hybridized Schottel RudderPropellers type SRP 430 will have a power intake capacity of about 2,000 kW each which will be fed by zero emissions electrical motors and/or low-emissions LNG main engines. 

The 360-degree steerable SRPs combine maximum maneuverability and a high bollard pull as harbor operations require.  

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Singapore-based Sembcorp Marine chose Schottel&rsquo s azimuthal hybrid drive system SYDRIVE-E to power the world&rsquo s first liquefied natural gas (LNG) hybrid tug. Image courtesy Schottel

 

 

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Schottel&rsquo s azimuthal hybrid drive system SYDRIVE-E. Image courtesy Schottel

Credit: Santos

Singapore-based Sembcorp Marine has secured an exclusive contract from floating production firm Altera Infrastructure, to carry out the Front-End Engineering Design (FEED) work for an FPSO to be built for Santos' Dorado oil and project offshore Australia.

Dorado. located in the Bedout Sub-basin, offshore Western Australia,   is an oil and gas project which is expected to have an initial oil production of 75,000 to 100,000 barrels per day, with subsequent development of significant gas resources

Altera Infrastructure, previously known as Teekay Offshore,last month secured the FEED contract from Santos for the Dorado FPSO

Now, Altera has awarded the FEED work to Sembcorp Marine' s Sembcorp Marine Rigs & Floaters unit.

Sembcorp Marine Head of Rigs & Floaters William Gu said: " We are excited to work with Altera Infrastructure and Santos to develop Dorado. The award of the FEED contract affirms Sembcorp Marine&rsquo s engineering, procurement and construction (EPC) capabilities, and reinforces our credentials as a leading engineering solutions provider for the offshore, marine and energy industries.&rdquo

The FEED work is expected to be completed by the second quarter of 2022. This is the Group&rsquo s third EPC project in collaboration with Altera Infrastructure, following the successful delivery of FPSO Pioneiro de Libra and FPSO Petrojarl Cidade de Itajai in 2017 and 2012 respectively.

A Final Investment Decision for the Dorado development is targeted for mid-2022.